ip igmp窥探drop-unknown

描述

Configures drop-unknown mode. While IGMP snooping is enabled, the traffic will be forwarded only to ports that made an IGMP request for the multicast. Drop unknown filters ensure that packets are not forwarded to ports that did not make a request for the traffic stream. This could either be a filter across all VLANs (vlan-shared) or per VLAN (vlan-exclusive)。默认值是vlan-shared.

The没有form of this command disables drop unknown on the switch.

Command context

config

Parameters

vlan-shared

Enables shared VLAN filter on the switch. Default:vlan-shared.

vlan-exclusive

Enables exclusive drop unknown filter per VLAN.

Authority

Administrators or local user group members with execution rights for this command.

Examples

Configuring shared VLAN filter on the switch:

switch(config)#ip igmp窥探drop-unknown vlan-shared

Configuring exclusive drop unknown filter per VLAN:

switch(config)#ip igmp窥探drop-unknown vlan-exclusive

Disabling drop unknown on the switch:

switch(config)#没有ip igmp窥探drop-unknown